# -*- mode: snippet -*-
# name: feynman
# key: fmf
# expand-env: ((yas/indent-line 'fixed) (yas/wrap-around-region 'nil))
# --
\begin{fmffile}{${1:simple}}
\begin{fmfgraph*}(40,25)
\fmfleft{${2:i1,i2}}		% in particles
\fmfright{${3:o1,o2}} 		% out particles
\fmf{fermion}{${4:i1,v1,o1}}  	% fermion line
\fmflabel{$0}{i1} 	      	% labels
\end{fmfgraph*}
\end{fmffile}
